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2. Fire door - Wikipedia

   en.wikipedia.org/wiki/Fire_door

   The intumescent and smoke-seal bounding of fire doors should be routinely checked, as should the action of the door closer and latch. Some fire doors are held open by an electromagnet, which is typically wired to a fire alarm system. If the power fails or the fire alarm is activated, the coil is de-energized, and the door closes.

3. Intumescent - Wikipedia

   en.wikipedia.org/wiki/Intumescent

   These intumescent materials produce a light char which is a poor conductor of heat, thus retarding heat transfer.Typically the light char consists of microporous carbonaceous foam formed by a chemical reaction of three main components: ammonium polyphosphate, pentaerythritol, and melamine. [2]

4. Fire damper - Wikipedia

   en.wikipedia.org/wiki/Fire_damper

   Air transfer fire dampers for doors are designed and tested for use in the lower part of door leaves and cannot be installed elsewhere or higher. In Europe, the fire door test EN 14600 and EN 1634-1 applies. Air transfer fire dampers in facades are vents applied in wall, eave soffit, gable or foundation. In the US, these are used to protect ...

5. Texas wants to buy surplus border wall parts but U.S ... - AOL

   www.aol.com/texas-wants-buy-surplus-border...

   Texas officials try to intercept sale of surplus border wall materials Patrick noted that Texas became aware of the materials slated for auction on Dec. 12, the same day the Daily Wire reported ...

6. Megyn Kelly Slams ‘Conclave’ as ‘Disgusting Anti-Catholic ...

   www.aol.com/megyn-kelly-slams-conclave...

   SPOILER ALERT: This article contains major plot details from the finale of Edward Berger’s “Conclave.” Megyn Kelly took to X to criticize Edward Berger’s “Conclave” as a “disgusting ...

7. Rex Heuermann, alleged Long Island serial killer, charged ...

   www.aol.com/alleged-long-island-serial-killer...

   RIVERHEAD, N.Y. - Accused Gilgo Beach serial killer Rex Heuermann has been charged with a seventh murder. Heuermann was charged with killing Valerie Mack, a 24-year-old from New Jersey who had ...

8. Passive fire protection - Wikipedia

   en.wikipedia.org/wiki/Passive_fire_protection

   Fire-resistance rated wall assembly with fire door, cable tray penetration and intumescent cable coating. Passive fire protection (PFP) is components or systems of a building or structure that slows or impedes the spread of the effects of fire or smoke without system activation, and usually without movement. [1]

9. 'Let's see what happens': Trump (reluctantly) picks ex-critic ...

   www.aol.com/lets-see-happens-trump-picks...

   President-elect Donald Trump has tapped Morgan Ortagus, a Trump critic turned supporter, to serve as his deputy special envoy for Middle East peace.